Wall-box for air-pipes.



M. E. DA-NFORTHQ WALL BOX FOB. AIR PIPES. APPLICATION FILED 1m 26, 1909945,707. Patented Jan.4,1910.

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UITFQ s'raans ram MONTGOMERY E. DANFORTH, OF WASHINGTON, DISTRICT OFCOLUMBIA, ASSIGNOR TO UNITED STATES RADIATOR COMPANY, F DUNKIBK, NE'WYORK, A CORPORA- TION OF NEW YORK.

To all whom it may concern:

Be it known that I, MONTGOMERY E. DAN- FORTH, a citizen of the UnitedStates, residing at lVashington, in the District of Co- 6 lumbia, haveinvented new and useful Improvements in all-Boxes for Air-Pipes, ofwhich the following is a specification.

My invention relates to wall boxes for air pipes, and has for its objectto provide an improved construction of the same whereby rain and snowwill be effectually excluded without interfering with the free admissionof air, and whereby the water thrown within said box will be dischargedfree from the wall.

Heretofore in devices of this character the inclined deflecting platestherein have been located entirely within the outer flange thereof,whereby rain or other moisture would be forced to seep therefrom betweensaid flange and the wall of the building, which soon resulted in adiscoloration of the wall as well as injury thereto. By my improvedconstruction the water is all discharged outside of and free from saidflange, thus obviating this defect in the devices heretofore in use.

In the accompanying drawing: Figure 1 is a front view of a portion of awall showing my improved box in position therein. Fig. 2 is an enlargeddetail vertical transverse sectional view of my improved wall boxdetached. Fig. 3 is a detail perspective view of the upper deflectingplate. Fig. 4 is a view similar to Fig. 2, illustrating a slightlymodified construction.

Similar numerals of reference denote corresponding parts in the severalviews.

In the said drawing the reference numeral 40 1 denotes the body or caseof my improved wall box, and 2 the outer flange thereof adapted when inpositon to lie against the outer face of the wall 3 of the building,said body or case and flange being formed integral. Located within thebody 1 is an upper deflecting plate 4 formed vertical as to its upperportion, and inclined downwardly and outwardly at its lower portion,said plate having end walls 5, the upper edges of which contact withprojecting surfaces 6 formed in. the end walls of the body 1, as seen inFig. 2. Located beneath the plate 4: is a lower deflecting plate '7,similarly shaped, but with a shorter vertical portion and a longerinclined portion, as shown, and

Specification of Letters Patent.

Application filed May 26, 1909.

Patented Jan. 4, 1910.

Serial No. 498,531.

similarly provided with end walls 8 shaped to abut at their upperinclined edges with theunder side of the inclined portion of plate 4: toretain the latter in position against the surface 6. it being understoodthat the end walls 5 of said plate 4 by abutting against the flange 2 ofbody 1 are prevented from forward movement. As seen in the drawing, thelower end of the lower plate 7 is projected somewhat beyond the frontface of the flange 2; said flange being slotted at 9 to permit thisprojection. The lower plate 7 is retained in position by a horizontalmetal strip 10 extending across the body 1 and bent at its ends to bebolted to the end walls of said body. Said strip 10 also retains betweenit and the plate 7 the lower edge of a wire screen 11, whose upper edgeis retained in position by a strip 12, similar to strip 10, the ends ofwhich are bent downwardly and bolted to the end walls of body 1, saidscreen thus preventing the entrance of objectionable matter into the airpipe.

From the above description it will be seen that rain beating into thebox will be intercepted by the plates 4 and 7, and that by projectingthe lower edge of the plate 7 beyond the face of the flange 2 the waterso intercepted will be discharged free from the flange 2 and will beeffectually prevented from entering the lower portion of the box andseeping down between the same and the wall.

In Fig. 41 have shown a slight modification wherein the upper ends ofthe plates 4: and 7 are turned forward at an angle, as shown at 13 andlet, respectively, whereby the entrance of water into the box will bemore efl'ectually prevented, Without interfering with the passage ofair.

Having thus described my invention, what- I claim as new and desire tosecure by Letters Patent is:

1. In a wall box for air pipes, a body having an outer flange, and adeflecting plate located within said body and projected at its loweredge beyond said flange, said plate being formed with end wallscontacting with the end walls of said body and with the inner side ofsaid outer flange.

2. In a wall box for air pipes, a body having an outer flange, and adeflecting plate located within said body and projected at its loweredge beyond said flange, said flange being slotted to permit the passagethere through of the lower end of said plate.

3. in a wall box for air pipes, a body and said flange, and a transversestrip bolted to the end Walls of said body and engaging said lowerdeflecting plate to retain both of having an outer flange and pro ectingsur- 1 said deflecting plates in position.

faces on the inner faces of its end Walls, an upper deflecting platelocated Within said body and having end Walls abutting against saidprojecting surfaces and the inner face of said flange a lower deflectingplate located Within said body and having end Walls abutting againstsaid upper deflecting plate In testimony whereof I have hereunto set myhand in the presence of tWo subscribing Witnesses.

MONTGOMERY E. DANFORTH. lVitnesses PERCY B. HILLs, A. L. MAY.

